Safety Requirements

Potential Hazards

Choosing the right shoe for the specific demands of the job is essential to ensuring that a safety shoe provides proper protection. Safety shoe must be chosen judiciously based on nature of industry and potential hazards.

Impact-injuries Impact Injuries
Spills-Splashes Spills and Splashes
Compression-Injuries Compression Injuries
Electrical-Shocks Electrical Shocks
slipping Slipping
Temperature-Extremes Temperature Extremes

Common causes of injuries at work

Injuries Common Causes
Lacerations and Cuts Unguarded machinery
Electric Shocks Static electricity, Contact with sources of electricity
Burns Hot metal or chemical splashes
Ankle Sprain and foot fracture Slippery and Oily floors

Characteristics of Acme Shoes

Safety shoes demonstrate some properties to overcome the potential hazards of various industries:

Potential Hazards

Anatomy of Safety Shoe Image

Anatomy Shoe

The Right Fit

Right Fit

Sole of a safety shoe

Anatomy Sole

Antistatic & ESD Shoes

Acme Shoe Sole Resistance
  • Our body continuously accumulates electrostatic charges while performing everyday activities.
  • This accumulation of charges on the human body is often lethal to static sensitive electronic components and can lead to electrical hazards or cause ignition of chemicals/explosives.
  • It is very important to discharge undesired electrostatic charge in certain industries where employees come into contact with processes, materials or objects which are sensitive to electrostatic charge.
  • In these industries it is necessary to use safety shoes that conduct electrostatic charge and thereby maintain the body at zero charge.

Standard Labels

Footwear symbols for industrial usage

Basic requirements/additional requirements/ categories e.g. for leather shoes Safety footwear
EN ISO 20345
or EN 345-1
Protective footwear
EN ISO 20346
or EN 346-1
Occupational footwear
EN ISO 20347
or EN 347-1
Basic requirements for shoes and impact resistance of toecaps SB
200 Joule
PB
100 Joule
OB
No requirement
Additional requirements:
Closed heel
Antistatic
Energy absorption around heel
S1 P1 O1+
fuel-resistant sole
Additional requirements: as above, plus
Water penetration
Water absorption
S2 P2 O2
Additional requirements: as above, plus
Penetration resistance
Cleated outsole
S3 P3 O3
The choice of a particular shoe depends on the type of occupational risk. As with all the footwear, additional requirements may exist (e.g. in terms of heat and cold insulation, penetration resistance or electrical resistance via ESD). These shoes are then mark accordingly.

The testing principles for all basic and additional requirements are specified in DIN EN 344-1/-2 and EN ISO 20344.
Basic requirements/additional requirements/ categories e.g. for shoes made from PVC or PU
Basic requirements for shoes and impact resistance of toecaps SB
200 Joule
PB
100 Joule
OB
No requirement
Additional requirements:
Antistatic properties
Energy absorption of seat region
Fuel resistance
Penetration resistance
Cleated outsole
S5 P5 O5
One of the three following requirements must be met and labelled in the shoe for all newly certified models from December 2007
Label Characteristics tested Test conditions Friction coefficient
SRA Slip resistance on ceramic tile floors with sodium lauryl sulphate solution (SLS) Forward slip of the heel
Forward slip on a flat surface
No less than 0.28
No less than 0.32
SRB Slip resistance on steel floors with glycerol Forward slip of the heel
Forward slip on a flat surface
No less than 0.13
No less than 0.18
SRC Slip resistance on ceramic tile floors with sodium lauryl sulfate solution and on steel floors with glycerol Includes all test conditions cited under a. and b.

Additional requirements for special applications with corresponding symbols

SYMBOL ICON RISK COVERED EN ISO 20345:2004 or EN 345 or (IS 15298 Part2)
SB S1 S2 S3
  Basic
P Penetration resistance
A Antistatic footwear
E Energy absorption around heel
HI Heat insulation
CI Cold insulation
WRU Water resistance of upper
HRO Heat resistance of outsole (+300 °C/min)
WR Whole shoe waterproof
M Metatarsal protection
FO Resistance to oil and petrol

Requirement Met -

Requirement can be met but is not stipulated -

* Penetration resistance – Warning - Please note that the penetration resistance of this footwear has been measured in the laboratory using a truncated nail of diameter 4.5 mm and a force of 1100 N. Higher forces or nails of smaller diameter will increase the risk of penetration occurring. In such circumstances alternative preventative measures should be considered.

Download our Basics of Safety Shoes Brochure.